Home / 20,263.26-27,964.68-11,312.49

Finding the Fourth Proportional to 20,263.26, 27,964.68 and 11,312.49

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Solution

The fourth proportional to 20,263.26, 27,964.68 and 11,312.49 is: 15,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.26 : 27,964.68 = 11,312.49 : x
  2. Step 2: Convert to fraction form
    20,263.26/27,964.68 = 11,312.49/x
  3. Step 3: Cross multiply
    20,263.26x = 27,964.68 × 11,312.49
  4. Step 4: Simplify right side
    20,263.26x = 316,350,162.85
  5. Step 5: Solve for x
    x = 316,350,162.85/20,263.26
  6. Step 6: Final answer
    x = 15,612.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.